What is EDID?

EDID stands for Extended Display Information Data. This is the data contained (usually in a small EEPROM) on each DVI display or HDMI sink. There may be as many as one EDID per DVI or HDMI input.

The source device checks the display’s DVI or HDMI port for the presence of an EDID prom and uses the information inside to optimize the output video and/or audio format. The EDID data structure can be for either VESA PC devices or for CEA-861B E-EDID (Enhanced EDID) devices. All sink devices compliant to the DVI or HDMI specification must implement EDID.

An EDID PROM is used only in sink devices. An EDID PROM sits on the DDC channel and uses a 2-wire I2C bus (part of the DDC specification from www.vesa.org) to communicate from the sink to the source. The EDID PROM contains information about the sink that it resides in. Its job is to communicate the preferred (or supported) video and audio formats and resolutions to the originating source. As an example, when a DVD player is powered on, it reads the EDID from an attached HDTV. The HDTV will have in its EDID contents that it is a Samsung 17” LCD panel that supports native resolution of 1280x1024 pixels, but can also support 480p, 720p and 1080i video modes. The EDID may also say that the TV is an HDMI device and has 2-speakers. The DVD player would compare this information with what it can put out of its HDMI port, then set itself to send 1080i with 2-channel stereo to the HDTV.

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TESTIMONIALS

arrived as described and fairly quickly

ponkowy

2013-10-09 06:39:00

Great Switch Box! Works well with my tube amps! Fast Delivery too! Thanks!

2013-10-31 14:51:00

Great device! Thank you!! ++++++

sergeyklenov

2013-06-29 00:56:00

1x4 COMPOSITE VIDEO DISTRIBUTION AMPLIFIER - Thank You

adamlimo

2013-08-19 16:10:00

Great product great price super fast shipping no problems!!!

2013-12-05 21:07:00

Got it. Thanks!

2014-02-01 21:48:00

Brandnew item, really quick delivery, overall very satisfied

2013-12-19 11:00:00

HDWISE had the lowest price that I could find for the item that I wanted and with free shipping I simply could not pass it up. Being packaged well and arriving as scheduled, I am quite happy as a first-time customer.

By dublbublgum

2013-06-14 00:00:00

Great Thanks!...

2014-01-20 15:16:00

Awesome!!!

saknarong

2013-09-20 07:38:00

Item as described. Fast shipping.

2014-03-07 08:07:00

items don't arrive-track number of other costumer.very slow e-mail answer

2014-01-29 12:05:00

Great product, good price, good comunication, strongly recommend!!! A++++++++

rfcalvilho

2013-09-04 13:48:00

Thanks, great purchase.

2013-10-28 18:06:00

worked nicely;am happy with this

baronvonbrian

2013-06-07 18:36:00

"HDWISE had the lowest price that I could find for the item that I wanted and with free shipping I simply could not pass it up. Being packaged well and arriving as…
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By dublbublgum

2013-06-14 00:00:00

recomendable

2013-11-07 02:26:00

Perfect all the way!! Thanks a lot!!

2014-01-22 05:31:00

ok perfect

2013-11-06 16:35:00

3701 RCA,1x4 COMPOSITE VIDEO DISTRIBUTION - Good Seller

adamlimo

2013-10-01 13:45:00

Worked Great

2014-01-01 10:01:00

Item as described and works perfectly. Fast delivery. Thanks!

zarath111

2013-05-27 06:05:00

Item arrived as expected. Thank you!

orenwolf

2013-08-27 19:52:00

Good product!

vitelinc

2013-09-21 05:32:00

Great product, great service.

digitalgoo

2013-07-31 14:23:00

Very pleased with price,service and speedy shipping. ordered 4 ZVPro280 qam modulators for my project in fabulous Las Vegas, arrived in 2 days with free shipping, right in time! Will use them again for upcomming projects. Thanks a lot from Hobus Visual!